Make peak detection with locally_exclussive faster and more accurate.

[samuelgarcia]

After playing a bit with the rust language, and trying to reimplement the peak detection algo using "locally_exclussive"
I discover that the actual impelmentation could be fasten a lot (at least 3X faster on my machine).

Also the new implementation is is more accurate for corener cases :

• when the theshold are not teh same by channel (the comparison must be done on the ratio and not teh value)
• when value in the sweep are higher but not peak thenself

Also I change the exclude_sweep_ms=0.1 at many place in the code this was a bad value by default it has to be half on the peak waveforms or a bit more.